While collaboration is a natural choice in many situations, there is a lack of specialized tools for collaboratively seeking information. We present design specifications and implementation of a collaborative information seeking system. We test this system through several pilot studies and cognitive walkthroughs. User interactions and feedback from these studies help us refine our design specifications for a better collaborative information seeking system. Keywords Collaborative information seeking, Interface design and testing ACM Classification Keywords H.5.3. Information Interfaces and Presentation (e.g., HCI): Group and Organization Interfaces - Computersupported cooperative work.